Questions & Answers about הוא קונה את הספר בחנות.
It is the Hebrew definite article, equivalent to the.
So:
- ספר = book
- הספר = the book
Unlike English, Hebrew usually adds the as a prefix to the noun instead of writing it as a separate word.
Here את is the direct object marker. It comes before a definite direct object, in this case הספר.
So את הספר marks the book as the thing being bought.
It usually is not translated into English. It is there for grammar, not meaning.
Also, this is not the same as the preposition את meaning with. In unpointed Hebrew they look the same, but here the grammar clearly shows it is the direct object marker.